I used the letter (I) and the line for the absolute value. Thanks for your help.

Nov 11th 2007, 08:46 PM

topsquark

Quote:

Originally Posted by MathMack

3 Ix+3I = Ix-3I+2x

I used the letter (I) and the line for the absolute value. Thanks for your help.

By the way, your keyboard has a key | that is just above the "enter" key. Use that for absolute value.

There are 3 intervals you need to consider:

On the equation reads

On the equation reads

On the equation reads

One, or more, of these equations will give you your solution set.

-Dan

Nov 11th 2007, 08:54 PM

MathMack

I'm a little confused, so if I do one of them equations it will give me the answer or what I need for the problem?

Nov 11th 2007, 09:38 PM

topsquark

Quote:

Originally Posted by MathMack

I'm a little confused, so if I do one of them equations it will give me the answer or what I need for the problem?

You need to do all three to see which one will give you a solution. For example, the first two give the same solution, which are both inside (barely) their regions of applicability. The third equation has no solution.